Machine for effecting kneading, crushing, mixing, and similar operations



June 19, 1934- H. G. TORULF Err AL 7 1,963,534 MACHINE FOR EFFECTING KNEADING, CRUSHING, MIXING; AND SIMILAR OPERATIQNS Filed Feb. 26, m1

Patented June 19, 1934 t 1,963,534

MACHINE FOR EFFECTING KNEADING, itlRggglNG, MIXING, AND SIMILAR OPERA- Helge Gustaf Torulf and Birger Zettergren, Stockholm, Sweden; said Zettergren asslgnor to said Torulf Application February 26, 1931, Serial No. 518,525 In Sweden August 14, 1929 1 Claims (Cl. 259-85) This invention relates to machines for eifectis acted on by a spring 19 placed around the ing kneading, crushing, mixing, and similar opstandard 18 upon arm '1, said spring being so arerations and particularly to that kind of such ran 8 to a s h arm 16 to h the roller machines which comprises a rotary receptacle 1 in e m n Wi h inn Surface the 6 and one or more rollers or the like which are receptacle. The roller 14 is formed with a hub yieldingly pressed against the inner surface of surrounding the .shaft 15 which projects besaid receptacle and adapted upon the rotation'of W the p 0 e roller. Said hub carrying at the receptacle to rotate about separate axes parits pp end greoved'frietieh Whee1 21 allel or substantially parallel to the axis of a n Wedge g 22 concentric t0 the axis 10 rotation of the receptacle. In machines of this f, r tation of the receptacle, said ring 22 m- 5 kind as hitherto known the said rotation of the prising the inwardly directed edge of a flange 23 roller or rollers is effected either due to the fricattached) the receptacle 1 n the p theretion of the roller or rollers against the recepof. Below said ring 22 the upper edge portion tacle or against the material under treatment, or 24 01 the receptacle 1 P s dly t such 1! by positive engagement between the roller or an ext n that the opening of the receptac is of rollers and thereceptacle, or, finally, by a, sepa less great diameter than the opening bounded arate driving mechanism. A well-known form by the ring 2 so that the enga ment f h of such a driving mechanism comprises a-wedge grooved wheel 21 with said wedge ring 22 will ring formed at the upper edge of the receptacle take place a a p i shielded off frcmthe i0 .and a grooved friction wheel carried by the roller rior of the receptacle by said inwardly bent 76 or each roller. With such a driving mechanism edge p it is impossible to prevent, especially in t t t- The material to be treated having been placed ment of liquid material, the material under in the receptacle 1, the latter is caused to rotate. treatment from coming i to t t t said 'Due to the engagement of the wheel 21 in the 25 transmission device and become impure. r1118 22 the roller 14 is caused to rotate about The invention has for its object to overcome its Own Shaft 15, While being h in engagement said inconvenience. To this end a transmission with the inner Surface of h pt l h u h device is provided to impart power fro th with a resilient pressure. The material will be receptacle to the roller or rollers, while being treated between the surfaces of receptacle 1 and 80 shielded off from the interior of the receptacle. the roller 14 which both rotate at diflel'eht D 85 In the accompanying drawing, one embodiriplieral speed. If, during the operation, any ment of the invention is illustrated. Fig. 1 is a p i o material under treatment would vertical section of a machine constructed acbe thrown up so that it comes into contact with cording to the invention. Fig." 2 is a top plane the wheel 21 or with the ring 22 and become 85 view of the machine with certain parts removed. i p then Said Portion of the material Fig. 3 is a vertical section of the transmission not a reach the interior of the receptacle device taken at right angles to the section shown to eehtemhlete h m r l contained r i in Fig. 1. because it will be caught by the inwardly bent An open to'pped receptacle 1 is removably portion 24 of the receptacle.

40 'mounted on a vertical-shaft 2 mounted in two The fl n e 23 w ich arri 1 c i s the bearings 3, 4 which form parts of a casing 5 wedge ring 22 may either be removably attached adapted to be clampedto a table top or the like to the receptacle in any convenient manner, or .6 by means of an upper arm 7 adapted to rest it may be p rma tly atta h d t t y rivupon the upper side of the table top and a lower eting, or it may be formed integral with the rearm 8 carrying a clamping screw 9 which may ceptacle. Ifdesired, the wedge ring 22 may be be tightened to engage the lower surface of the attached to the inwardly bent upper edge portable top. The casing 5 contains a pair of bevel tion of the receptacle. In such case, however, gears 10, 11, which connect the vertical shaft 2 to a protecting flange should be provided within the horizontal shaft 12 of a crank with a handle the receptacle below said edge portion.

13. Provided within the receptacle 1 is a noller The roller may be quite smooth, as indicated in 105 14 which may rotate about a shaft 15 parallel to the drawing, or fluted, or partially fluted and the shaft 2, that is to say, vertical. Shaft 15 is partially smooth. It is to be noted that more carried by a horizontal arm 16 projecting from than one roller may be used in one and the same a bushing 1'7 which is placed-on a standard 18 receptacle. A 4

u standing from the arm '7. Said bushing 1'7 The transmission device shownmay be replaced by any other type of power transmission device without departing from the scope or principle of the invention.

What we claim is:--

5 A machine of the kind described, comprising in combination an open-topped receptacle rotatable about a vertical axis to receive the material to be treated, means to rotate the receptacle, a roller in said receptacle, means carried from outside the receptacle including a shaft depending in the receptacle to rotatably carry the roller, two inwardly extending flanges at the top of the receptacle vertically spaced apart so 

